Estimating the service-level cracking behavior of deep beams

Robin G Tuchscherer, Jessica Kettelkamp

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The objective of this study is to correlate the serviceability behavior of a deep beam, in terms of maximum crack width and total area of visible cracking, to the internal strain energy estimated from a representative strut-and-tie model. To accomplish this objective, the authors tested 12 deep beam specimens with a 10 x 20 in. (250 x 510 mm) cross section. Experimental variables included the shear span-depth ratio, quantity of vertical and horizontal web reinforcement, spacing of web reinforcement, and configuration of primary tension reinforcement. Based on the results, the authors provide recommendations for: 1) estimating the maximum diagonal crack width; 2) estimating the total area of visible cracking; and 3) optimizing the strut-and-tie model in terms of expected cracking behavior.

Original languageEnglish (US)
Pages (from-to)875-883
Number of pages9
JournalACI Structural Journal
Volume115
Issue number3
DOIs
StatePublished - May 1 2018

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Keywords

  • Crack area
  • Crack width
  • Deep beam
  • Photogrammetry
  • Serviceability
  • Strain energy

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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